– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Sat 18 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Sat 18 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Sat 18 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 8°C on Sat morning). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Very mild (max 16°C on Tue afternoon, min 7°C on Wed night). Wind will be generally light. | |||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  | |  |  | | | |  | |  | |  |  | |
some clouds | some clouds | some clouds | some clouds | cloudy | rain shwrs | some clouds | rain shwrs | risk tstorm | some clouds | rain shwrs | rain shwrs | light rain | light rain | light rain | some clouds | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 0.1 | — | 0.2 | 0.2 | — | 0.7 | 0.8 | 0.2 | 0.3 | 0.4 | — | — | — | |
max °C | 12 | 15 | 12 | 18 | 20 | 16 | 19 | 21 | 16 | 15 | 16 | 11 | 9 | 9 | 9 | 9 | 12 | 9 |
min °C | 8 | 14 | 11 | 14 | 20 | 13 | 16 | 19 | 11 | 13 | 13 | 8 | 9 | 9 | 7 | 7 | 12 | 7 |
7 | 14 | 11 | 14 | 20 | 13 | 16 | 19 | 11 | 13 | 13 | 8 | 9 | 9 | 7 | 7 | 11 | 7 | |
2200 | 2500 | 2800 | 2900 | 3000 | 3000 | 3050 | 3100 | 2950 | 3100 | 3050 | 2950 | 2200 | 2150 | 1900 | 1650 | 2100 | 2100 | |
Cloud base (m) | 3400 | 3000 | 2550 | 3450 | 3400 | 4700 | 4100 | 3650 | 1550 | 650 | 550 | 550 | 600 | 700 | 1650 | |||
 | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — |
 | — | — | 8:02 | — | — | 8:04 | — | — | 8:06 | — | — | 8:07 | — | — | 8:08 | — | — | 8:09 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 21°C on Mon afternoon, min 8°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 2mm), mostly falling on Tue night. Very mild (max 16°C on Tue afternoon, min 7°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.